Polar Bluetooth Smart Stride Sensor | Black Accessories and I'm fine

and I'm fine

[Details] Trolley strap on back slides onto rolling luggage handles

Water resistant black Cordura bottom

for a handsome closable tote that will last for decades

seam-taped

Polar Bluetooth Smart Stride Sensor | Black Accessories and I'm fineImprove your running technique and performance with the Polar Bluetooth Smart Stride Sensor. This sensor works in conjunction with the Polar Beat app to record your speed, distance, and stride length. Stay on track and see your progress using the mobile app on a smartphone or tablet. Just attach the Polar Bluetooth Smart Stride Sensor to your shoe and get moving! [Details] Measures each stride to show running speed and distance Improve your running